code: def test_expand_heatmap_invalid():
      # image is wrong type
      heatmap = np.zeros((1, 1))
      image = np.ones((2, 2))
      with pytest.raises(TypeError):
          expand_heatmap(heatmap, image, PIL.Image.BOX)
  
imports: import pytest
  import numpy
  from eli5.base import Explanation, TargetExplanation
  from eli5.formatters.image import format_as_image, heatmap_to_image, expand_heatmap, _validate_heatmap, _update_alpha, _cap_alpha, _overlay_heatmap
  from .utils_image import assert_pixel_by_pixel_equal
label_desc: Use image node_id 16 for calling a global function with example usage: test_expand_heatmap_invalid() without return types